ci2 starts bisection 2024-09-01 20:14:34.389572645 +0000 UTC m=+185382.534569604 bisecting fixing commit since 993bed180178156a70afdafe8aaf23a117107352 building syzkaller on 454571b6a16598f5a6e015b9fb1a04932bce7ab9 ensuring issue is reproducible on original commit 993bed180178156a70afdafe8aaf23a117107352 testing commit 993bed180178156a70afdafe8aaf23a117107352 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 117d0b7e3fe9db241c7fb02a92350adef54da3c23e5f826d6c2ec42a3d636354 all runs: crashed: general protection fault in security_inode_getattr representative crash: general protection fault in security_inode_getattr, types: [UNKNOWN] check whether we can drop unnecessary instrumentation disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 993bed180178156a70afdafe8aaf23a117107352 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 18ec15d3b35531539761ae3f2371446c395392c04c8f75a3efc4c513492d01f9 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in security_inode_getattr representative crash: BUG: unable to handle kernel NULL pointer dereference in security_inode_getattr, types: [UNKNOWN] the bug reproduces without the instrumentation disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed kconfig minimization: base=4920 full=6159 leaves diff=242 split chunks (needed=false): <242> split chunk #0 of len 242 into 5 parts testing without sub-chunk 1/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit 993bed180178156a70afdafe8aaf23a117107352 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: bf717d9df682b3d14e7f1c0ce02f9678d28539b71a0594fe1edd046ee0262082 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in security_inode_getattr representative crash: BUG: unable to handle kernel NULL pointer dereference in security_inode_getattr, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit 993bed180178156a70afdafe8aaf23a117107352 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3f8a8b923ecd00a4bffd75d9ab937c389f9ce38f832caeffd2c7456103622e77 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in security_inode_getattr representative crash: BUG: unable to handle kernel NULL pointer dereference in security_inode_getattr, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 993bed180178156a70afdafe8aaf23a117107352 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 03b5c0d46720bab7ae7066b2922a21a5c16d93c1a2dd69fdd3978b1dd0139ee2 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in security_inode_getattr representative crash: BUG: unable to handle kernel NULL pointer dereference in security_inode_getattr, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit 993bed180178156a70afdafe8aaf23a117107352 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8386b572845670d680a5711bf82ba296594f553412750fe8da3eeff3e03f7615 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in security_inode_getattr representative crash: BUG: unable to handle kernel NULL pointer dereference in security_inode_getattr, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 993bed180178156a70afdafe8aaf23a117107352 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 failed building 993bed180178156a70afdafe8aaf23a117107352: net/socket.c:1191: undefined reference to `wext_handle_ioctl' net/socket.c:3385: undefined reference to `compat_wext_handle_ioctl' net/core/net-procfs.c:343: undefined reference to `wext_proc_exit' net/core/net-procfs.c:327: undefined reference to `wext_proc_init' minimized to 46 configs; suspects: [HID_ZEROPLUS USB_NET_GL620A USB_NET_MCS7830 USB_NET_NET1080 USB_NET_PLUSB USB_NET_RNDIS_HOST USB_NET_SMSC75XX USB_NET_SMSC95XX USB_NET_SR9700 USB_NET_SR9800 USB_NET_ZAURUS USB_OHCI_HCD USB_OHCI_HCD_PCI USB_OHCI_HCD_PLATFORM USB_OTG USB_OTG_FSM USB_PRINTER USB_SERIAL USB_SERIAL_FTDI_SIO USB_SERIAL_GENERIC USB_SERIAL_PL2303 USB_STORAGE_ALAUDA USB_STORAGE_CYPRESS_ATACB USB_STORAGE_DATAFAB USB_STORAGE_FREECOM USB_STORAGE_ISD200 USB_STORAGE_JUMPSHOT USB_STORAGE_KARMA USB_STORAGE_ONETOUCH USB_STORAGE_SDDR09 USB_STORAGE_SDDR55 USB_STORAGE_USBAT USB_TRANCEVIBRATOR USB_U_AUDIO USB_U_ETHER USB_U_SERIAL USB_WDM WLAN WLAN_VENDOR_ATH WLAN_VENDOR_ATMEL WLAN_VENDOR_BROADCOM WLAN_VENDOR_INTERSIL WLAN_VENDOR_MARVELL WLAN_VENDOR_MEDIATEK WLAN_VENDOR_MICROCHIP WLAN_VENDOR_RALINK WLAN_VENDOR_REALTEK WLAN_VENDOR_RSI WLAN_VENDOR_ZYDAS X86_X32 ZEROPLUS_FF] disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing current HEAD 29d153aabd54226781d6165592fbcfa1e00e571c testing commit 29d153aabd54226781d6165592fbcfa1e00e571c gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4082f1af01d73c5d7cd2cb0fdd2b01f016276df73110bb4c62aaf743b5e58884 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in security_inode_getattr representative crash: BUG: unable to handle kernel NULL pointer dereference in security_inode_getattr, types: [UNKNOWN] crash still not fixed/happens on the oldest tested release revisions tested: 7, total time: 1h14m12.838991171s (build: 53m38.339216236s, test: 18m53.428828511s) crash still not fixed or there were kernel test errors commit msg: Merge 5.15.156 into android13-5.15-lts crash: BUG: unable to handle kernel NULL pointer dereference in security_inode_getattr BUG: kernel NULL pointer dereference, address: 0000000000000030 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 10eb95067 P4D 10eb95067 PUD 10eb99067 PMD 0 Oops: 0000 [#1] PREEMPT SMP CPU: 1 PID: 348 Comm: syz-executor.0 Not tainted 5.15.156-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 RIP: 0010:security_inode_getattr+0x4/0x40 security/security.c:1347 Code: 85 c0 75 0a 48 8b 1b 48 85 db 75 eb 31 c0 5b 41 5c 41 5d 5d c3 31 c0 c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 8b 47 08 <48> 8b 40 30 f6 40 0d 02 75 2f 55 48 89 e5 41 54 49 89 fc 53 48 8b RSP: 0018:ffffc90000403840 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff888109ded9c0 RCX: 0000000000000000 RDX: 00000000000007ff RSI: ffffc90000403988 RDI: ffffc90000403978 RBP: ffffc90000403868 R08: 0000000000000064 R09: ffff88810b02a1e0 R10: 000000000000007f R11: 0000000000000000 R12: ffffc90000403988 R13: 00000000000007ff R14: 0000000000000000 R15: ffffc90000403978 FS: 00007f36b7f626c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000030 CR3: 000000010eb85000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ovl_copy_up_one+0xaa/0xed0 fs/overlayfs/copy_up.c:961 ovl_copy_up_flags+0xb6/0x100 fs/overlayfs/copy_up.c:1047 ovl_maybe_copy_up+0x8d/0xb0 fs/overlayfs/copy_up.c:1079 ovl_open+0x27/0x80 fs/overlayfs/file.c:152 do_dentry_open+0x167/0x410 fs/open.c:828 vfs_open fs/open.c:958 [inline] dentry_open+0x48/0x70 fs/open.c:974 file_open+0xca/0x230 fs/incfs/vfs.c:1465 do_dentry_open+0x167/0x410 fs/open.c:828 vfs_open+0x28/0x30 fs/open.c:958 do_open fs/namei.c:3608 [inline] path_openat+0xcfa/0x1230 fs/namei.c:3742 do_filp_open+0xb1/0x150 fs/namei.c:3769 do_sys_openat2+0x9c/0x250 fs/open.c:1234 do_sys_open fs/open.c:1250 [inline] __do_sys_openat fs/open.c:1266 [inline] __se_sys_openat fs/open.c:1261 [inline] __x64_sys_openat+0x51/0x90 fs/open.c:1261 x64_sys_call+0x2eb/0x990 arch/x86/include/generated/asm/syscalls_64.h:258 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x33/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f36b83e0da9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f36b7f620c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f36b850ef80 RCX: 00007f36b83e0da9 RDX: 0000000000000002 RSI: 0000000020000080 RDI: 0000000000000004 RBP: 00007f36b842d47a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f36b850ef80 R15: 00007ffce8b1cba8 Modules linked in: CR2: 0000000000000030 ---[ end trace 9f3f85378cb7dd06 ]--- RIP: 0010:security_inode_getattr+0x4/0x40 security/security.c:1347 Code: 85 c0 75 0a 48 8b 1b 48 85 db 75 eb 31 c0 5b 41 5c 41 5d 5d c3 31 c0 c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 8b 47 08 <48> 8b 40 30 f6 40 0d 02 75 2f 55 48 89 e5 41 54 49 89 fc 53 48 8b RSP: 0018:ffffc90000403840 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff888109ded9c0 RCX: 0000000000000000 RDX: 00000000000007ff RSI: ffffc90000403988 RDI: ffffc90000403978 RBP: ffffc90000403868 R08: 0000000000000064 R09: ffff88810b02a1e0 R10: 000000000000007f R11: 0000000000000000 R12: ffffc90000403988 R13: 00000000000007ff R14: 0000000000000000 R15: ffffc90000403978 FS: 00007f36b7f626c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000030 CR3: 000000010eb85000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 85 c0 test %eax,%eax 2: 75 0a jne 0xe 4: 48 8b 1b mov (%rbx),%rbx 7: 48 85 db test %rbx,%rbx a: 75 eb jne 0xfffffff7 c: 31 c0 xor %eax,%eax e: 5b pop %rbx f: 41 5c pop %r12 11: 41 5d pop %r13 13: 5d pop %rbp 14: c3 ret 15: 31 c0 xor %eax,%eax 17: c3 ret 18: 66 66 2e 0f 1f 84 00 data16 cs nopw 0x0(%rax,%rax,1) 1f: 00 00 00 00 23: 0f 1f 00 nopl (%rax) 26: 48 8b 47 08 mov 0x8(%rdi),%rax * 2a: 48 8b 40 30 mov 0x30(%rax),%rax <-- trapping instruction 2e: f6 40 0d 02 testb $0x2,0xd(%rax) 32: 75 2f jne 0x63 34: 55 push %rbp 35: 48 89 e5 mov %rsp,%rbp 38: 41 54 push %r12 3a: 49 89 fc mov %rdi,%r12 3d: 53 push %rbx 3e: 48 rex.W 3f: 8b .byte 0x8b